Hominy mill



(No Model.) 3 Sheets-8heet 1.

' J. WARRINGTON.

HOMINY MILL No. 427,644. Patented May 13, 1890.

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(No Model.) 3 Sheets-Sheet 2. J. WARRINGTON.

HOMINY MILL.

No. 427,644. Patented May 13, 1890.

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(No Model.) a Sheets-Shet 3.

J. WARRINGTON.

- HOMINY MILL.

No. 427,644. Patented May 13,1890.

"WI TJVESSES.

UNITED STATES PATENT OFFICE.

JESSE \VARRINGTON, OF INDIANAPOLIS, INDIANA, ASSIGNOR OF ONE-HALF TO THENORDYKE d; MARMON COMPANY, OF SAME PLACE.

HOMlNY-MILL.

SPECIFICATION forming part of Letters Patent No. 427,644, dated May 13,1890.

Application filed June 26, 1886. Serial No. 206,284. (No model.)

To all whom it 17mg concern.-

Be it known that I, J ESSE WARE NGTON, of the city of Indianapolis,county of Marion, and State of Indiana, have invented certain new 5 anduseful Improvements in Hominy-Hills,

of which the following is a specification.

The object of my said invention is to provide mechanism by which thefeed-gate and discharging-gate of a hominy-mill will be automaticallyopened and closed at stated periods, and the treated material thusdischarged and a new supply of material let into the mill at propertimes, as will be hereinafter more particularly described and claimed.

[ Referring to the accompanying drawings, which are made a part hereof,and on which similar letters of reference indicate similar parts, Figure1 is a side elevation of a hominy-mill embodying my said invention; Fig.

2, an end elevation of the same, as seen from the left of Fig. 1; Fig.3, an end elevation as seen from the right of Fig. 1; Fig. at, ahorizontal sectional view looking downward from the dotted lineal inFig. 1; Fig. 5, a detail sectional view through the driving-gears 011the dotted line 5 5 in Figs. i and 6; Fig. 6, a horizontal sectionalview of the same 011 the dotted line (3 6 in Fig. 5; Fig. 7, a viewlooking toward the left from the dotted line 7 7 0 in Figs. 6 and 9;Fig. 8,:111 under side plan of the gears, as seen when looking upwardfrom the dotted line 8 8 in Figs. 5 and 10; Fig. 9, a top or plan viewof the driving-gear separately; Fig. 10, a side elevation of the same;

5 Fig. 11, a vertical sectional view on the dotted line 11 11 in Fig. 9;Fig. 12, a transverse vertical section looking toward the right from thedotted line l2 12 in Figs. 6 and 7; Fig. 13, a vertical sectionalviewlooking upward from the dotted line 13 13 in Fig.9; Fig.l4,atransverse sectional view as seen when looking toward the right fromthe dotted line le 14in Fig. 1, showing the mechanism which operates thedischarging-gate; and Fig. 15, a similar view of the mechanism whichoperates the feed-gate, as seen from the dotted line 15 15 in Fig. l,the lower portion of the frame-work being shown in dotted lines.

In said drawings, the portions marked A represent the frame-work andbody of the hominy-mill; B, its cylinder; 3, a wheel which is the firstof the series through which the mechanism for operating the: gates isdriven; D, the second wheel of the series, which is a vibratinggear-wheel; E, the third wheel, which is mounted loosely upon thecam-shaft; F an arm pivoted to ahub fixedly mounted on said shaft; G,said cam-shaft;

H H, two standards secured to the frame A and provided with cam surfacesagainst which said pivoted arm rests; I I, a twopart wheel mounted on astud-shaft 011 the frame II, and provided with projections whereby it isperiodically operated by similar projections on the wheel E, to throwthe pivoted bar F into engagement with said wheel F; J, a weighted armpivoted to a convenient portion of the permanent framework, or to astandard provided for that purpose, which is connected to thedischarging- 7o gate of the mill; K, said discharging-gate; L,

an arm similar to thearm J, connected to the mechanism for operating thefeed-gate of the mill; M, a rockshaft carrying a gear by which said feedgate is operated, and N said feedgate. I I

The frame A includes the supporting-legs, the cylindrical body whichreceives the grain to be treated, fixed standards or bearings for theshaft, and the hopper. It is, as shown, of a usual and well-knowncharacter, and needs no special description.

The cylinder B is the usual revolving cylinder of a hominy-mill, armedwith the operating-blades 1). Its shaft B extends outside the cylinderand has a pulley b, by which it is driven by a belt B The wheel O ismounted on a stud-shaft c, and is driven by a cross-belt C, which runsfrom said wheel or pulley to the shaft 3 or a small pulley thereon. Asocket or bearing is formed in said wheel, and into this socket orbearing a spindle, forming part of the vibrating gear-wheel, enters, andthus, as said wheel O revolves, said gear-wheel is given its Vibratingmotion.

The vibrating gear-wheel D is mounted on an arm or spoke D, on which itmay oscillate in a vertical plane, and said arm or spoke is secured bypins d to the framework, and r is adapted to rock on said pins in ahorizontal plane, and thus one end of the spindle d is permitted totravel through the circle described by the socket in the wheel 0, intowhich it enters. This wheel D engages with the gear-wheel E, and itsoperation is as follows: The number of cogs in said wheels isdifferentz'. 6., the wheel D has a greater or less number than the wheelE-and thus,

notwithstanding that said wheel D does not rotate, but only vibrates,said wheel E will be rotated at a greater or less speed, according asthe difference in the number of the cogs is greater or less. In practicein my machine I have made the wheel D with one more cog than the wheel Eis provided with, and therefore said wheel E rotates very slowly in theopposite direction to that in which the wheel 0 rotates, and I thusreduce the speed much more than would be practicable by any otherarrangement without a greater number of parts, the shaft B traveling atthe rate of about eight hundred revolutions per minute, While the wheelE travels no more than about seven and one-half revolutions per minute.

This is partly accomplished by means of different-sized belt-pulleys, asshown, but principally by the oscillating gear-wheel being provided withone more cog than the revolving gear-wheel with which it engages. Assaid oscillating wheel can thus only force said revolving wheel forwardthe space of a single cogat each complete movement of itself, it willtake as many movements of the oscillating wheel as it has cogs to make asinglecomplete revolution of the revolving gearwheel, as will be readilyunderstood.

The wheel E, as before stated, is mounted loosely on the shaft G, andtravels upon said shaft until, by the operation of the mechanismhereinafter described, it is made to cause It is provided G extends outthe greater part of the length of said bar F and forms bearing-surfacesfor the outer portions of said bar. To said hub is secured a spring 9,having a pin on its outer end which passes down through a hole in oneend of the 'projecting'portion of the hub G and enters one or the otherof two notches or cavities formed to receive it in the bar F, (seeparticularly Figs. 7 and 12,) and thus said vibrating bar is held in theposition to which it has been forced by the cam-faced standards. The endof said pin is formed with a blunt taper, and the notches or cavitiesare formed correspondingly flaring, so that while the bar is held inposition thereby during the time desired it can be readily forced fromone position to the other as it is brought in con tact with thecam-faces on the standards H and II.

The shaft G carries the above-described hub G, and also cams G and G bywhich the arms J and L and the mechanism connected thereto are operated.It is revolved periodically by the vibrating arm F when it is forcedinto and out of engagement wit-h projections e on the wheel E.

The standards II and H are firmly secured to a portion of the frame Aand extend up alongside and operate upon the vibrating bar F, as will behereinafter described. The standard II also carries a stud-shaft i, (seeespecially Figs. 6, 8, 10, and 11,) upon which the wheel I I is mountedand operates, and has an arm h, in which is a set-screw h, by which theoperation of the wheel part I is regulated, as will be presentlydescribed. A spring 7L2 is also secured tothis arm and bears against thesurface of the wheel part I, and thus serves as a brake for said wheelpart, preventing it from moving, except as itis operated by themechanism.

The wheel I I is mounted, as before stated, upon a stud-shaft 2' on thestandard H It consists of two parts, one of which I has a projection 1;,(see Figs. 10 and 11,) with which the projections e on the wheel Ewillcome in contact as said wheel E revolves, thus imparting to said wheelpart I a partial revolution. Said wheel part I also has the weight "L bywhich, when the projection ehas passed the projection t", it will bereturned to its former position, ready to be operated upon by saidprojection during the next revolution 'of said wheel E. Said part I alsohas a stop 2' (see Figs. 10 and 11,) which prevents the weight frommoving it too far, and also by which, with the aid of the set-screw 71,the extent of the revolution of said wheel is determined. Said wheelpart I has also an internal flange 2' in the form of a segment of acircle, (struck from a different center than the centerof the wheel,)between which flange and the flange forming the outer portion of theother wheel part I are placed one or more rollers 1, which take theplace of a ratchet and cause said other wheel part I to revolve in thesame direction .with the wheel part I and at the same time, by reason ofthe surfaces between which they rest being flaring, permit said wheelpart I to return to position without moving said wheel part I, as willbe readily understood by an examination of the drawings, especiallyFigs. 6 and 11. wheel part I is revolved, as just described, by thewheel part I when the latter is operated upon by the projections on thewheel E; but as it does not, because of the character of the clutchformed of rolls resting upon flaring surfaces, as before described,accompany said wheel part I on its return movemen t,'it eventually makesa complete revolution. It is provided with a projection 6 (see Figs. 8and 2,) which in the course of. the revolution comes against the side ofthe vibrating bar F and forces it upward. At the same time, by reason ofthe cam-surface on the projecting portion 7? of the standard H, (seeFigs. 8 and 13,) saidpart F is forced toward the wheel E, and is thusthrown into engagement with one of the projections e on said wheel E,and

the result is that said vibrating bar, the hub to which it is secured,the shaft G, and the cams thereon make a complete revolution, therotation being discontinued when the other end of said vibrating barcomes in contact with the cam-surface at the upper end of the standardH, which throws said vibrating bar out of engagement with the projection6, when, of course, its movement ceases until, by the operationhereinbefore described, the projection t on the wheel part I againoperates the vibrating bar.

As before stated, the distance which the wheel part I is moved by therevolution of the wheel E may be determined by an adj ustment of theset-screw h, as when said setscrew is screwed down the projection t" isconsequently elevated, and thus the engagement between said projectionand the projection 6 on the wheel E will be of shorter duration thanwhen said set-screw is screwed up, and said projection z" consequentlylowered. By this arrangement, as will be readily seen, the times atwhich the gates are opened may be varied and a longer or shorter period,as desired, allowed to elapse between such times of opening withoutvarying the time occupied in opening and closing the gates themselves.

The weighted arm J (see Figs. 1 and 14) is mounted upon a pivot j on astandard which 'forms part of the frame A, and in which frame ispreferably a bearing for the rod G, Said arm is connected to thedischarging-gate K by a rod J, and is thus adapted when moved by the camG to open said gate. It has a projection or pin j, with which said camcomes in contact, and the mechanism for discharging is thus operatedwhen the shaft G revolves. Said cam is so arranged, as before stated,that when said shaft G is revolved it will open the gate and permitit tobe closed before the other cam on said shaft opens the feed-gate.

The gate K is hinged to the body of the mill and is, in effect, a partthereof. It is connected, as just described, to the weighted arm J andis operated thereby. After being opened by the operation of the cam onsaid weighted arm, after said cam has passed outof engagement with theprojection j, said gate is again closed by the weight K on its arm 7c,aided by the weight J on the arm J, said weights being sufficient tohold said gate closed until forcibly opened.

The weighted arm L (see Figs. 2, 3, and 15) is similarly secured to theframe A by the pivot l, and is operated by the action of-the cam GE uponthe projection or pin Z. Said arm is connected by the rod L to an arm m(see Fig. 3) on the rock-shaft M, and is thus adapted to operate saidrock-shaft- As will be seen by an examination of Figs. 3 and 15, theconnection between said rod and said arm is made adjustable, and thusthe gate may be moved a greater or less distance. After the cam G haspassed the weight L is suflicient to return the parts to their formerposition and close the gate.

The rock-shaftM extends through the hopper underneath the feed-gate, andhas one or more cogged segments m, which engage with correspondingrack-bars on the under side of said gate, and as said shaft is rocked bythe operation of the mechanism just described said gate is opened orclosed.

The gate N is the ordinary feed-gate of a hominy-mill and is operated inthe manner just described.

As hereinbefore stated, the mechanism is so timed that thedischarging-gate will be opened and closed before the feed -gate isopened, and, as will be seen by an examination of the drawings, the camG by which said feed-gate is operated, has a considerable portion of itssurface in the form of a segment of a circle struck from the centerofrotation, and thus said gate is held open a time sufficient to admitthe charge of corn desired.

The result which I have attained by my invention is not only anautomatic operation of the discharging and feeding gates, but that suchoperation is timed with exact reference to the number of revolutions ofthe cylinder, and thus each charge or measure of corn is subject toexactly the same amount of treatment, and this without reference to thespeed of the mill, a faster speed of the operating-cylinder resulting ina quicker operation of said discharging and feeding gates, which, aswill be readily understood, is a desirable result.

The direction of the several revolving or rotating parts is indicated byarrows upon the drawings, and. dotted lines are used where it is ofadvantage to show the location or configuration of hidden parts.

Having thus fully described said invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. The combination, in a hominy-mill, of the cylinder, the feedinggate,the discharginggate, an intermittingly-moving shaft, cams on said shaft,pivoted weighted arms arranged to be operated by said cams, connectionsbetween said arms and said gates, and mechanism whereby the gates areoperated in a uniform time regardless of the time occupied in treatingthe charge of grain, substantially as set forth.

2. The combination, in a hominy-mill, of a reciprocating feeding-gate, aswinging discharging-gate, an intermittingly-movin g shaft driven by thesame power which drives the mill, cams upon said shaft, arms pivoted tothe frame-work of the mill arranged to be IIO ' operated by said cams,and rods running from said arms, whereby said gates are opened andclosed, substantially as set forth.

3. In a hominy-mill, the combination of the cylinder, mechanism foroperating the same, the feed-gate, the discharging-gate, mechanism foroperating said gates automatically, and a doubly-pivoted gear-wheelconnecting said mechanism for operating the cylinder and said mechanismfor operating the gates, substantially as set forth.

4. The combination, in a mechanism for periodically operating the gatesof a hominymill, of awheel having a hearing or socket on one side of itscenter, a doubly-pivoted gearwheel mounted on a frame-work and having aspindle or shank entering said socket, whereby, as said first wheel isrevolved, said gear-wheel is vibrated, a second gear-wheel having adifferent number of teeth from said vibrating gearwheel and engagingtherewith, mechanism which is operated by said second gear-wheel,connections between said mechanism and the feeding and discharginggates, and said feeding and discharging gates.

5. The combination of the main cylinder of a hominy-mill, a system ofgearing, the last wheel E of said gearing having projections thereon andmounted loosely on a shaft, said shaft, a two-part wheel I I, havinginternal friction-rolls, the part I having a projection which isoperated upon by a projection on said last gear-wheel E, and the part Ihaving a projection which, as the wheel revolves, will come into contactwith and operate a vibrating bar secured to a hub on the shaft and forcesaid bar into engagement with another projection 011 said gear-wheel,and fixed cam-shaped projections by which said bar can be thrown out ofsaid engagement, and said bar and hub, whereby said gearwheel being incontinuous revolution the said shaft to which said vibrating bar isattached may be given an intermittent revolution, substantially as setforth.

6. The combination, in a hominy-mill, of the loosely-mounted wheel E,having projections e e, the shaft G, the vibrating bar F, pivoted to thefixedly-mounted hub G, said fixedly-mounted hub, the standards H H,having cam-surfaces, and the two-part wheel I I, operating, asdescribed, to throw said vibrating bar into engagement with theprojection 6 on said wheel E.

7. The combination, in a hominy-mill, of the wheel E, the two-part wheelI I, secured together by internal friction-- rolls or their equivalent,and having projections t", '5 and i, the shaft G, having hub G, saidhub, the vibrating bar F, pivoted to said hub, camsurfaces with whichsaid vibrating bar comes in contact, and an adj Listing-screw h, fordetermining the movement of the wheel I, substantially as set forth.

8. The combination,-in ahominy-mill, with the two-part wheel I I,suitably geared together and operated one part by the other, of aprojection 2' 011 one, and a fixed point with which said projection maycome in contact, whereby its position when at rest maybe determined, andmeans secured to the opposite side of the wheel by which, except whenforcibly moved therefrom, it will be held in its original position.

9. The combination, in a hominy-mill, of a shaft G, a hub G, fixedlymounted thereon, a vibrating bar F, pivoted to said hub, extendedportions on each side of said hub against which said bar rests, a springg, secured to said hub, and having a pin thereon which extends downthrough one of said extended portions and engages with notches orcavities in said vibrating bar, whereby said vibrating bar may be heldin or out of engagement with the operating mechanism until forciblymoved into another position, substantially as described.

10. The combination, in a hominy-mill, of the wheel E, havingprojections thereon and loosely'mounted on a shaft, said shaft, avibrating bar F, with which said projections may engage, pivoted to ahub fixedly mounted on said shaft, said hub, standards H and II, havingcam-surfaces which operate reversely upon said vibrating bar, andmechanism for periodically forcing said bar into engagement with one ofthe projections onssaid wheel, substantially as set forth.

11. The combination, in a hominy-mill, of a cylinder, its shaft B, awheel (J, a belt by which said wheel is driven, a doubly-pivotedgear-Wheel D, having a shank or spindle cl, which enters a socket orbearingin said wheel 0, a loosely-mounted wheel E, having projections eand 'e, a vibrating bar F, pivoted to a fixedly-mounted hub on the shaftG, said shaft G, said hub, cam-faced standards H and H, a two-part wheelI I, means of engagement between said two parts, whereby when the part Iis moved in one direction the part I is moved therewith, but whichengagement is released when said part I moves back, a projection 011said part I, with which the projections on the wheel E engage, aprojection 011 said part I, which engages with and operates to forcesaid bar F into engagement with one of the projections e on the wheel E,whereby said shaft G is periodically revolved from said wheel E, whichitself is in continual rotation, substantially as set forth.

12. The combination, in a hominy-mill, of the intermittently-revolvingshaft G, a cam G thereon, a weighted arm J, pivoted to the frame-workand having a projection or pin j, with which said cam engages, aconnectingrod J, by which said arm is connected to the gate K, and saidgate K.

13. The combination, in a hominy-mill, of the shaft G, the cam Gthereon, the weighted arm J, pivoted to the frame-work and provided witha pin or projection, with which said cam engages, a connecting-rod J between said arm and the discharging-gate, said discharging-gate an arm70, and a weight K on said arm, substantially as set forth.

14. The combination, in a hominy-niill, of the shaft G, the cam G apivoted arm L, having a pin or projection Z, a connecting-rod L,connecting said pivoted arm to an arm m on a rock-shaft, said arm m,said rock-shaft M, having a toothed segment, and a feed-gate N, having acorresponding rack-bansubstantiall y as set forth.

15. The combination, with the feed-gate of a hominy-mill having arack-bar secured thereto, a rock-shaft having a toothed segment engagingwith said rack-bar, and an arm on, of a pivoted arm, a connecting-rodconnecting said pivoted arm to the arm on the rockshaft, and a cam foroperating said pivoted arm.

16. The combination, with the feeding and discharging-gates of ahominy-mill, of the shaft G, having cams G2 and G weighted arms pivotedto the frame-work and adapted to be operated by said cams, connectionsbetween said pivoted arms and said gates, said cams being arranged, asdescribed, so that during a single revolution of said shaft saiddischarging-gate will first be opened and closed and said feeding-gateafterward be opened and closed, whereby the treated product or hominymay first be discharged from the mill and a second charge or portion ofgrain then introduced, substantially as set forth.

In witness whereof I have hereunto set my hand and seal, atIndianapolis, Indiana, this 21st day of June, A. D. 1886;

JESSE WVARRINGTON. [L. s]

In presence of EDWARD T. DICKEY, CHARLES L. THURBER.

